Telecommunications – Transmitter and receiver at same station – With transmitter-receiver switching or interaction prevention
Patent
1997-03-07
2000-05-23
Vo, Nguyen
Telecommunications
Transmitter and receiver at same station
With transmitter-receiver switching or interaction prevention
455 63, 455303, 455296, H04B 144, H04B 110
Patent
active
060674482
ABSTRACT:
A wideband high isolation circulator network reduces or eliminate interfece from a nearby RF transmitted signal in a received RF signal. The network includes a first sampler for dividing a first signal into second and third signals; a circulator for receiving the second signal through a first port, for outputting a fourth signal and receiving a fifth signal through a second port, and for outputting a sixth signal through a third port which represents the vector sum of samples of the second and fifth signals; and a signal processing stage which generates a seventh signal having amplitude and phase characteristics representing the fifth signal in response to receiving the third and sixth signals.
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U.S. application No. 08/614,782, Ho et al., filed Mar. 8, 1996.
Ho Thinh Q.
Rockway John W.
Appiah Charles N.
Fendelman Harvey
Kagan Michael A.
Lipovsky Peter A.
The United States of America as represented by the Secretary of
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